Add wgetch and mvwgetch functions
Fix incorrect mvwgetch prototype
Check one more time that the player has tools, before they install items
Move all gun mods into json raws
Merge pull request #1000 from ethankaminski/welding-fix

Stop the player from being able to install vehicle parts sans welder
Added overmap buffer stuff to .cbp
Added overmap stuff to visual studio project file.
Purifiers will no longer remove starting traits such as 'android',
'skilled liar' or 'nearsighted'
Updated VERSION to 0.5

...because the old version number was the first thing I was worrying about when i compiled it.
Fix floating-point math to actually use floating point numbers
Change some more odd double vs. int stuff
Update the Windows titlebar to say 0.5
Merge PR #985 - more curses functions in catacurse
Add missing semicolon after catacurse.h function declaration
Merge PR #1011 - purifier fix
Merge PR #1009 - ammo to JSON
Use correct spelling of "acceptable" in JSON
Make skidding cause uncontrollable turning rather than uncontrollable impossible vector changes.
Don't allow driverless vehicles to recover from skids.
Merge remote-tracking branch 'dda/pr/1015' into dda-master